Marking-machine.



G. H. LANG. MARKING'MACH INE.

APPLICATION FILED NOV. 17, 1911.

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4 SHEETS SHEET 2.

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G. H. LANG.

MARKING MACHINE.

. APPLICATION FILED NOV. 17, I91!- ear g 5 him G. H. LANG. MARKING MACHINE.

APPLICATION FILED NOV. I7, Hill.

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MARKING MACHINE.

APPLICATION FILED NOV. 17, 19H.

"Patented 0m. 24, 1916,

4 SHEETS-SHEET 4 January 28, 1908.

STATES PATENT O FICE.)

GEORGE H. LANG, OF BOSTON, MASSACHUSETTS.

MARKING-MACHINE.

Specification of Letters Patent.

Application filed November 17, 1911. Serial No. 660,743.

to mark some identifying character upon.

leather. cloth. or other sheet material. and has particular reference to a machine that is adapted to make a luminous imprint on leather or cloth. Such an'imprint can be made by using-a printingcompound in the nature of gold. gilt. or silver alloy which has mixed therewith a suitable adhesive. In order to make a lasting impression by means of such a printing compound it is necessary to apply the printing compound in a heated condition.

The machine herein shown is especially designed for printing an impression of this character. and is provided notonly with means for heating the printing elements. but is also provided-with novel means for inking the printing elements.

My invention is capable of being applied to printing machines of different design. and

in order to illustrate the principle of the invention I have chosen to show it herein as it would be applied to a printing machine of the general type shown in my Patents X0. 86%.790, September 190T. and X0. 877,653,

In the drawings. Figure 1 is a side view of a printing machine embodyingmy invention; Fig. 2 is a top plan view thereof: Fig. 3 is a section on the line .r-n, Fig. 1: Fig. 1 is a section on the line 1 1 Fig. 1: Fig. 5 is a plan view of the inking plat-e: Fig. 6 is a side view partly in section of the inking plate and its mounting: Fig. 7 is a fragmentary detail view of the inking rolli Fig. 8 is a section on the line (1a. Fig. 7: Fig. 9 is a plan view of the platen; Fig. 10shows one of the type disks developed: Fig. 11 is an enlarged section on the line b-b. Fig. 1; Fig. 12 is a section on the line c0, Fig. 2;

Fig. 12* is a sectional viewof the platen;

- Fig. 13 is a view of the guard plate 93; Fig. i

14 is a longitudinal sectional view through the head showing an embodiment of the invention in which a typeplate is used in connectionwith the type wheel: Fig. 15 is a section on line (Z(Z. Fig. 1- Fig. 16 is a perspective view of the top of the type plate; Fig. 17 is a perspective view of the bottom' side of the type plate.

The machine herein illustrated is similar to that described in my before-mentioned patents in that it comprises a base or, frame 1 on which is pivotally mounted a vibrating member 2 that carries at its outer end a printing head. and that is given its vibrating movement by operating mechanism carried by the frame 1.

The vibrating arm '2is shown as having a hub 3 which is loosely mounted on a shaft 4 carried by the frame. and said arm has connected to its rear end a link 5 which is connected to a crank pin 6 carried .by the crank disk 7. .This crank disk is shown as mounted ona shaft 8 which carries a gear 9 that is driven by 'a pinion 10 on a driving shaft 11. Said driving shaft is controlled by a suitable friction clutch 1'2. and any approved clutch controlling mechanism may be employed such. for instance. as shown in my aforesaid patent. This particular operating mechanism for vibrating the arm 2 is not essential to the invention, however. as any suitable means for this'purpose might be employed.

The frame 1 is provided with the extension 13 which carries at its outer end a.

platen 14 on which the work to be printed is sustained.

- As stated above this machine is especially designed for making a printed impression with a printing compound which requires the application of heat in order to make the compound adhere to the work. and while any printing compound of this nature may be used. I have in mind to use a printing compound made from aluminum or bronze powder mixed with a suitable adhesive so that when the compound is applied to the work and heated the adhesive will cause the compound to permanently adhere to the work.

The arm -2 carries at its outer end a rioting head which comprises a plurality 6 type disks 15, each having suitable printing char- Patented Oct 24,1916.

acters formed on the periphery thereof. These type'disks are each provided wlth a handle 16 by which they may be adjusted to bring any printing character into printing position, and they are all'l-oosely mounted on a sleeve or tubular support 17 that IS sustained in the two side pieces 18 with which the arm 2 is provided. The hollow support 17 receives within it a heating element 19 which may conveniently be an electric heater provided with the two wires 20 which lead to a source of electric supply. One end of the hollow support 17 is closed by a cap :21 which is secured to said support by a set screw 22, and the other end of said hollow member is closed by another cap 23 provided with apertures through which the terminals 21 of the heater extend, said cap 23 being also held in place by a suitable set screw 25.

The type disks 15 have on part of their periphery the printing characters, and on another part of their periphery they are provided with index characters which are duplicates of-the printing characters. shows one of these type disks developed, and it shows at 27 the printing characters and at 26 the index characters. These index characters are so positioned that when the type disk is adjusted to bring any index character opposite an indication mark on the printing, head. such as '28, the corresponding printing character will be in position 'to make a printed impression. The type disks are held in their adjusted position by pawls 29 which are shown as pivoted upon a rod 30 extending between the two side pieces 18, and as provided with tails 31 which are acted upon by sultable sprlngs 32 that are supported by a cross bar 33 extend ing from one side piece 18 to the otheix. By means of this construction the heater 1 will heat the type disks 15 sutiiciently so that when the type disks are supplied with the printing compound, and then are applied to the work the printing compound will be heated sufliciently to cause it to finally adhere to the work.

The printing compound which I prefer to use is in the nature of a comparatively thick paste. and in order to provide for inking the type disks with a compound of this clmracterQI have provided the following mechanism: An inking roll 38 is employed whichismountedto move across the face of .the type and also over an inking plate which has a turning movement while the roll is in contact therewith whereby the printing co1npound will be evenly spread on the roll. \Vhile any suitable mechanism may be employed for giving the roll this movement, I prefer to support the roll in an inking roll carrier which is mounted on ways, so as to have a right-line movement. These ways are herein in the form of grooves 34 formed in the side pieces 18, and the inking roll Fig. 10

cam'ier is shown as formed from two cheek 36, and each of which has a rib 37 to fitone of the grooves 34. The inking roll 38 is provided with trunnions 39 at its ends which are received in slots 40 formed in the cheek pieces 35 so that said roll can be readily removed. For holding the roll in position I have provided each cheek piece with a recess 80 and have provided the trunnions with extensions 81 on which are slidably mounted locking collars 82 that are adapted to be received in the recesses 80, said collars being backed by springs 83 which yieldingly hold them against the cheek pieces. The engage ment of the locking collars in the recesses 80 prevents the roll from being removed until the collars have been moved backwardly on the extensions pivotally connected thereto a link 43,- and these links are connected to a rocking member 44 which is loosely mounted on the shaft 1 and which has rigid therewith an arm 45 that is connected by a link -16 with a crank arm -17 fast on the shaft 8. This mechanism is so arranged and adjusted that the rotation of the shaft 8 will give the inking roll carrier a reciprocating movement in its ways, thereby to bring the inking roll against the type when the head is in an elevated position, and to withdraw the inking roll from the type as the head descends into printing position.

48 is a rotary inking plate with which the inking roll has contact in its retracted position. and which supplies said roll. with the printing compounc. This inking plate is rotatably mounted in a support 49 carried by the arm 13. and it is also mounted for vertical'yielding movement so that it will accommodate itself to any vertical movement which the inking roll has due to the vibrating movement to the arm 2. As herein shown this inking plate is provided with a stem 50 which is received in an aperture formed in the support 49, and is capable of both turning in said aperture and moving longitudinally thereof. The aperture is enlarged at its lower end thereby forming a retaining shoulder 51 and the stem 50 has secured to its lower end a screw 52, the head of which engages the shoulder 51 and thereby limits the upward movement of the plate.

A spring 53 confined in a recess in the support -19 and acting against the under side of the inking plate yieldingly supports the same.

The inking plate is arranged to be given a slight turning movement while the inking roll is in contact therewith so that the engagement of the inking roll with the turning inking plate will insure that the inking compound is evenly spread over the surface of the plate. This turning movement of the turning plate is herein accomplished by pro-v viding the latter on its periphery with ratchet teeth 73, and by providing the inking roll carrier with the pawl 51 adapted to engage said teeth as the carrier reaches its retracted position. This pawl 5-t is shown as pivoted to one of the cheek pieces of the carrier. as at 55, and is yieldinglyheld in operative position by the spring 56 sustained by the carrier.

The parts are shown in Fig. 1 in the position which they assume when the machine is brought to rest. That is, the printing head is slightly below the upward limit of its movement. and the inking roll is at the edge of the inking plate. 'hen the machine is first started and the shaft 8 moves in the direction of the arrow the-printing head will be moved upwardly until it reaches the upward limit of its movement, and at the same time the inking roll will be advanced into contact with the type disks.

The printing head will then descend into-engagement with the work on the platen and at the same time the inking roll will.,.b'e carried backwardly over the inking plate, and the latter will be turned while the, roll is in contact therewitlnthereby supplying the inking roll with a fresh supply of the printingtompound. The inking plate is preferably placed on a slight inclination as shown in Figs. 1 and 6, so as to accommo-.

date the downward movement which the arm 2 gives to the inking roll, as the latter is being retracted. The yielding support for the inking plate l8 further accommodates this up-and-down movement of the inking rollso that the engagement between said roll and the inking plate will be maintained in spite of the up-and-down movement of the arm 2.

In order to facilitate the application of a- I said support 19 is to pivot it to the arm 13 as at 58 so that it can be swung bodily about its pivot, thereby to carry the inking plate out from under the arm 2 and lnto a position where it is convenient to apply the inking compound thereto- The support 49 is shown as having a slot 59 which is adapted to receive a positioning pin 60 when, the

parts are in normal positionfl The platen 1. is shown as mounted for As herein illustrated it is provided with a screw-threaded stem 61 on which isscrew-threaded an adjusting nut 62.

The stem 61 extends down through a sleeve 63 which is received in an aperture formed in the arm13, and is held in place by a set-screw 64. The nut 62 rests on the end of the sleeve and by turning the nut up or down the vertical position of the platen may be adjusted to suit the thickness of the work on which the imprint is to be made.

Associated with the platen is a gage for positioning the work and a guard which covers all of the work except that on which the imprint is to be made and prevents any liability of the work being smeared by type 7 adjacent those which are in printing posi- 111011.

As herein shown. the platen is made with the extension 81 to which is pivoted at 86 a bail-like-frame 85. the arms of said frame .sion St and thus limit the upward swing- 111g movement of said ball.

A spring 9:2 carried by the platen extension engages the under side of the bail and tends to move it upwardly. 93 designates the guard plate By loosening the clamping screws 88 which is secured at 91 to the frame S5 and which is provided with an aperture or slot 96 of a size and properly positionec'flto receive the platen 14. During the printing operation the work is inserted between the platen and guard 93. as shown at 97 in dotted lines, and when the printing head descends it engages the frame 85 and swings the latter downwardly against the spring 92. thus bringing the aperture 96 down over the platen 14. The portion of the work which is to be printed on is, therefore. exposed while the rest of the work is completely protected and will be kept clean.

I have provided herein means for vertically adjusting the inking roll 38 so as to insure that it will be in proper alinement. To-

accomplish this I have made the slides 35 separate from the ribs 37. each Ill) being pivotally connected to its slide at 99. The a front end of each rib is provided with the head 71 which carries a stop screw 72 adapted to engage a shoulder 75 on the cheek piece, and which also carries a clamping screw 76 thatscrews into the slide 35. The

ribs 37 must always travel in the ways 34.

but since the slides are pivoted to the ribsthe inking roll 38 can be adjusted vertically by manipulating the screws 72 and 76, as will be obvious.

It" is necessary that the type disks 15v the type disks and support are subjected to.

more or less heat and are, therefore, liable to expand, I propose to make the support 17 of material which has aless amount of expansion at a given heat than the material of which the disks 15 are made. By this construction the expansion of the disks will always be greater than that of the support so that the disks can at all times be freely adjusted. I find from experiments that by making the supports 17 of steel and the type wheels 15 of bronze, the above-desired results can be secured. I also desire to call attention to the fact that the inking plate 48 has a turning motion while the inking roll 38 is in contact therewith; This is of importance in the present invention because of the character of the printing compound used. I find that when the inking plate is given a rotary movement while the inking roll is in contact. therewith there will be a sort of grinding action between the inking plate and inking roll which will result in spreading the inking compound over the surface of the inking roll.

In Figs. 14 to 17 I have illustrated an embodiment of my invention in which a type plate is employed'in connectionwith the type disks. 18 are provided with means for holding a type plate which may have on'it some type 66 adapted to make an impression of a trademark, trade name or any other character which it is desired to use in connection with every impression made by the type disks. This plate is preferably removably mounted so that it can be used or not according as circumstances require. In the construction herein shown the side pieces 18 are rabbeted on their inner lower edges, asat 67, to form a space to receive the plate 65 and the printing head carries a spring-pressed holding finger 68 adapted to engage the back edge of said plate, the front edge ofjthe plate having pins 69 extending laterally therefrom which are adapted to be received in the inclined slots 70 formed in the side pieces 18. The spring-pressed finger 68' is shown as pivoted at 77 to the head and is acted upon by a plunger 78 carried in a recess in the head and backed by a spring 79. The rear edge 98 of the plate 65 is beveled slightly, as best seen in Fig. 14, and the end of the retaining finger 68 is beveled. The spring 79 forces the holding finger 68 against the beveled edge 98 of the plate and tends to crowd the plate forward and the pins 69 are forced against the inclined face of the slot 70 and the plate is thus held in position. Said plate is provided with a central opening 99 which is adapted to receive the type disks'15, said opening being of proper shape so that the p M type which are in operative position will project through the plate suiiiciently to make an impression. In fact the lower face of the type plate 65 is arranged to be substantially tangential to the type disks '15. When an impression is made the pressure against the type plate 65 is taken-by the shoulders 100 on In this construction the side pieces the side pieces against which the type plate rests. Said plate can be readily removed by merely pushing it backwardly against the action of the spring 79, and at the same time swinging the front end thereof downwardly out from the slot 70. Said plate is provided with a recess 101 in its front edge into which a rod or other implement may be inserted for giving the plate this backward and downward movement when it is to be removed. The .plate may be readily inserted into place by placing the rear edge 98 thereof against the holding finger 68 and then pushing the same backwardly until the pins 69 are in line with the groove 70 and then moving the front end of the plate upwardly into the position shown in Fig. 14.

While I have illustrated herein some embodiments of my invention, I do not wish to be limited to the particular construction shown.

Having fully described my invention,-

what I claim as new and desire to secure by Letters Patent, 'is:

1. In a printing machine, the combination with a base or frame, of an arm pivotally mounted thereon and having ways extending longitudinally thereof, type members carried by said arm, means on said base or frame for vibrating the arm, an inking roll carrier sustained by said arm for movement longitudinally thereof, an inking roll carried by said carrier, means actuated by the arm-vibrating mechanism to give the inking roll carrier its movement longitudinally of the arm and an inking plate sustained by the frame and situated to be engaged by the inking roll during its movement.

2. In a printing machine, the combination with a vertically moving printing head provided withvtype and having ways, of an inking roll carrier slidably mounted on said ways, an inking roll sustained by said carrier, a rotary inking plate, means sustaining said plate for rotary movement about its axis and for bodily movement in the direction of its axis, and means to move the carrier on the ways from the inking plate to the type.

3. In a printing machine, the combination with a vertically-movable member having ways, of adjustable type disks sustained thereby, an inking roll carrier movable in said ways, an inking roll sustained by said carrier, a rotary inking plate situated to be engaged by the roll as the carrier moves, means sustaining said plate for rotary movement about its axis and for bodily move ment in the direction of its axis, means to reciprocate the carrier, and means to rotate the inking plate by the movement of the carrier.

4. In a printing machine, the combination with a vertically movable printing head I inking roll carrier slidably mounted in said ways, an inking roll sustained by said carrier, a rotary inking plate situated to be engaged by the inking roll, meanssnstaining said plate. for rotary movement about its axis and for bodilv movement in the direction of its axis, means to reciprocate said carrier, and means to turn the plate by or through the movement of the carrier.

5. In a printing machine, the combination with a base or frame. of an arm pivotally mounted thereon and having ways extending longitudinally thereof, type members carried by said arm, means on said base or frame for vibrating the arm, an inking roll carrier sustained by said arm for movement longitudinally thereof in said ways, an inking roll carried by said carrier,- means actuated by the arm-vibrating mechamsm to give the inking roll carrier 1ts move ment longitudinally of the arm, and a yieldingly-sustained rotary inking plate situated between the type members and the pivotal axis of the arm and in position to be engaged by the ink roll as the ink roll carrier vibrates.

6. Ina printing machine, the combination with a base or frame, of an arm pivotally mounted thereon and carrying a printing head at one end, said arm'being provided with ways extending longitudinally thereof, an inking roll carrier sustained in position by and slidable in said ways, an inking roll carried by said carrier, a rotatable shaft mounted on the frame, operativeconnections between said shaft and the arm whereby saidarm is vibrated, and other connections between said shaft and said carrier whereby the carrier is moved in its ways.

7. In a printing machine, the combination with a base or frame.- of an arm pivotally mounted thereon and carrying a printing head at one end. said arm being provided with ways extending longitudinally ,thereof, an inking roll-ca'rriersusta-ined in position by and slidable in said ways, an inking roll carried by sa1d carrier, a rotatable shaft mounted on the frame, opera-' tive connections between said shaft and, the arm whereby said arm is vibrated, other connections between said shaft and said carrier whereby the carrier is moved in its Ways. and means to supply ink to said inking roll.

8. In a printing machine, the combination with a base-or frame, of an arm pivotally mounted thereon and carrying a printing head at one end, said arm being provided with ways extending longitudinally thereof, an inking roll carrier sustained in position by and slidable' in said ways, an inking roll carried by said carrier, a rotatable shaft mounted on'the frame, operative connections between said. shaft and the arm whereby said arm is vibrated, other connections between said shaft and said carrier whereby the carrier is moved in its ways,

and a rotary inking plate yieldingly sustained by said base or frame and situated to be engaged by the inking roll'as the carrier vibrates.

9. In a printing machine, the combination with a pivotally mounted arm carrying a printing head. of an inking roll carrier slidably mounted on said arm in the direction of its length, an inking roll sustained by said carrier, a shaft fog vibrating the arm, a rocking member mounted to turn about the axis of the arm and connected to the carrier, and a crank on said shaft for rocking said member.

10. In a printing machine, the combination with a vertically movable printing head extending longitudinally thereof and also 9 sustaining a printing head, of an inking roll carrier sustained by and movably mounted in said ways, an inking roll sustained by said carrier, a rotary inking plate situated beneath the ink roll at a point between the printing head and the pivotal axis of said arm-and with which the roll contacts, means to turn said plate by the movement of the carrier, and means 'tosustain said plate for vertical yielding movement in the direction of its axis.

12. In a printing machine, the combina* tion with a vertically movable printing head provided with ways, of an inking roll carrier mounted in said ways, an inking roll sustained by the carrier, an inking plate with which said roll contacts, a holder in which said plate is mounted for rotary movement, and means supporting said holder for horizontal movement in a lateral direction relative to that of the carrier.

13. in a printing machine,'the combination with a vertically movable printing head provided with ways, of an inking roll carrier mounted in said ways, an inking roll sustained by the carrier, an inking plate with which said roll contacts, and a holder for said plate pivotally mounted to swing horizontally in a lateral direction relative to the direction of movement of the printing head.

14. In a printing machine, the combination with a pivotally-mounted arm, of a printing head sustainedthereby, an inking roll carrier slidably mounted on said arm iio .in the direction of its length, an inking roll sustained by the carrier, an inking plate with which said roll contacts, a holder for said plate, and means sustaining said holder to permit the latter to be moved laterally of the arm in ahorizontal direction to withdraw it from the path of the ink roll.

15. In a printing machine, the combination with a vertically movable printing head provided with type-carrying members, of a stationary platen to receive the portion of the work on. which the impression is made,

a frame pivoted to the platen, a gage carried by the frame, and means for yieldingly sustaining said frame in position.

16. In a printing machine, the combination with a vertically-movable printing head provided with type-carrying members, of a stationary platen to receive the work, a

frame pivoted to the platen, a gage adjust ably carried by the fram'e, said frame being positioned to be engaged by the printing head while the impression is being made, and a spring yieldingly holding said frame in position but permittingit to give when engaged by the printing head.

17. In a printing machine, the combination with a vertically-movable printing head provided with type-carrying members, of a stationary platen to receive the work, a frame pivoted to the, platen, a gage adjustably carried by the frame, said frame being tension, a gage member carried by said frame, and means for yieldingly holding said frame in its operative position.

19. In a printing machine, the combination with a vertically-movable printing head, of a stationary platen having a work- -receiving portion and an extension, a bailshaped frame pivotally connected to said eX- tension, a gage member carried by said frame, a guard member also carried by said frame, and means for yieldingly holding said frame in its operative position.

20. In a printing machine, the combination with a vertically-movable printing head, of a stationary platen, a bail-shaped frame pivotally connected thereto, a gage member adjustably connected to the arms of said frame, a guard secured to said frame and extending over the platen, said guard having a platen-receiving aperture, and means for yieldingly holding said frame in operative position.

21. In a printing machine, the combination with a vertically-niovable printing head having ways, of an inking roll carrier comprising ribs operating in said ways, and side pieces pivotally connected thereto, an inking roll carried by said side pieces, and means to adjust the side pieces relative to the ribs thereby to effect vertical adjustment of the inking roll.

22. In a'printing machine, the combination with a tubular support, of a plurality of independently-ad ustable type disks loosely mounted thereon, and means within the support for heating the latter, said support being made of a material which has a less degree of expansion than that of which the .type disks are made whereby the'heating of the support and type disks will not cause any binding action.

In a printing machine, the combination with a printing head comprising two side pieces, and adjustable type disks sustained thereby, each of said side pieces being rabbeted at its-lower edge and provided with an inclined slot, of an auxiliary type plate having its edges received in the rabbeted portions of the side pieces, a spring-pressed holding finger engaging the rear edge of the type plate, pins extending laterally from said type plate near its front edge and occupying said slots.

In testimony whereof, I have signed my name to this specification, in the presence of two subscribing witnesses.

GEORGE H. LANG. 

